1980	1981	1982	1983	1984	1985	1986	1987	1988	1989
Significant quantities (SQs) of material under safeguards	16,723	18,578	20,800	26,469	31,116	37,890	41,929	47,236	52,413
Total department staff	275	317	358	375	401	414	427	447	462	475
	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999
Significant quantities (SQs) of material under safeguards	57,232	61,483	65,878	73,012	79,179	90,291	94,294
Total department staff	479	477	471	475	472	481	473

Note: A significant quantity is generally defined as being 8 kg of plutonium or 25 kg of highly enriched uranium.